Patents Assigned to Saint-Gobain Norpro Corporation
  • Ceramic packing element
    Patent number: 6889963
    Abstract: The invention provides an improved ceramic packing element having the basic shape of a cylinder with an aspect ratio, defined by the diameter to length dimensions that is from 2.7 to 4.5.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 10, 2005
    Assignee: Saint-Gobain Norpro Corporation
    Inventors: Hassan S. Niknafs, Robert L. Miller
  • Catalyst carriers
    Patent number: 6831037
    Abstract: The selectivity and activity of a silver-based olefin epoxidation catalyst is found to be a function of the pore size distribution in the alumina carrier on which it is deposited. Specifically it is found advantageous to provide a carrier which has a minimum of very large pores, (greater than 10 micrometers) and a water absorption of 35 to 55% and a surface area of at least 1.0 m2/g. A method of making such carriers is also described.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: December 14, 2004
    Assignee: Saint-Gobain Norpro Corporation
    Inventors: Thomas Szymanski, Donald J. Remus, John R. Lockemeyer, Randall Clayton Yeates, William H. Gerdes
  • Catalyst carriers
    Publication number: 20040170556
    Abstract: The selectivity and activity of a silver-based olefin epoxidation catalyst is found to be a function of the pore size distribution in the alumina carrier on which it is deposited. Specifically it is found advantageous to provide a carrier which has a minimum of very large pores, (greater than 10 micrometers) and a water absorption of 35 to 55% and a surface area of at least 1.0 m2/g. A method of malting such carriers is also described.
    Type: Application
    Filed: March 8, 2004
    Publication date: September 2, 2004
    Applicant: Saint-Gobain Norpro Corporation
    Inventors: Thomas Szymanski, Donald J. Remus, John R. Lockemeyer, Randall Clayton Yeates, William H. Gerdes
  • Halogen-resistant media
    Patent number: 6605557
    Abstract: Ceramic mass transfer media suitable for use in thermal regenerative oxidizers made using a mixture of a clay, talc and optionally a dolomitic limestone have enhanced resistance to environments containing halogens and hydrogen halides.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: August 12, 2003
    Assignee: Saint-Gobain Norpro Corporation
    Inventors: John S. Reid, Thomas Szymanski, Karen C. Beal
  • Random packing element
    Patent number: 6387534
    Abstract: The invention provides a novel improved packing element having the basic shape of a polygon with arches formed around the periphery by deforming the edge area in one direction and an area axially within the edge area to form arches projecting in the opposite direction and providing an axially located aperture. Such packing elements can be conveniently formed using a simple cutting and stamping operation.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: May 14, 2002
    Assignee: Saint-Gobain Norpro Corporation
    Inventor: Hassan S. Niknafs
  • Removal of impurities from hydrocarbon streams
    Patent number: 6372124
    Abstract: The invention provides a method of purifying hydrocarbon streams from metallic impurities which comprises passing the stream through media comprising alumina with relatively minor amounts of calcia and magnesia.
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: April 16, 2002
    Assignee: Saint-Gobain Norpro Corporation
    Inventors: John S. Reid, Thomas Szymanski, Shaun A. Mesher
  • Packing element
    Patent number: D445029
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: July 17, 2001
    Assignee: Saint-Gobain Norpro Corporation
    Inventor: Hassan S. Niknafs